When conducting elemental screening analysis of environmentally hazardous substances using a conventional, general-purpose X-ray fluorescence instrument, a great deal of time and effort are required for both generating a calibration curve as well as managing the instrument itself. The EDX-7000, a successor to such a general-purpose instrument, together with the Navi software, greatly facilitates screening analysis. Specifically, liquid nitrogen is not required for cooling the detector with this system, and sensitivity has been improved by 1.5 to 5 times that possible with previous models. As a result, metal samples consisting of copper alloy or tin alloy, etc. can now be analyzed from 3 to 10 times more quickly than previously possible.